It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Is there a difference between hydroxychloroquine and hydroxychloroquine sulfate Hydroxychloroquine fda approval Plaquenil eye exam how often Hydroxychloroquine HCQ, sold under the brand name Plaquenil among others, is a medication used for the prevention and treatment of certain types of malaria. Specifically it is used for chloroquine-sensitive malaria. Other uses include treatment of rheumatoid arthritis, lupus, and porphyria cutanea tarda. It is taken by mouth. BRAND NAMES Plaquenil. Medication Uses How To Use Side Effects Precautions Drug Interactions Overdose Notes Missed Dose Storage. USES Hydroxychloroquine is used to prevent or treat malaria infections caused by mosquito bites. It does not work against certain types of malaria chloroquine-resistant. Side Effects Nausea, stomach cramps, loss of appetite, diarrhea, dizziness, or headache may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Remember. Today, it is used to treat rheumatoid arthritis, some symptoms of lupus, childhood arthritis (or juvenile idiopathic arthritis) and other autoimmune diseases. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. Plaquenil and oral pigmentation Common and Rare Side Effects for Plaquenil Oral, HYDROXYCHLOROQUINE - ORAL Plaquenil side effects, medical. Plaquenil and positive ana numbers increasing Not for administration with other drugs that have potential to prolong QT interval; hydroxychloroquine prolongs QT interval; ventricular arrhythmias and torsades de pointes reported in patients taking hydroxychloroquine Skeletal muscle myopathy or neuropathy leading to progressive weakness and atrophy of proximal muscle groups. Plaquenil hydroxychloroquine sulfate dosing, indications.. Plaquenil Oral Uses, Side Effects, Interactions, Pictures.. Hydroxychloroquine-Induced Pigmentation in Patients With.. Consumer information about the medication HYDROXYCHLOROQUINE - ORAL Plaquenil, includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug HYDROXYCHLOROQUINE - ORAL. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Hydroxychloroquine oral tablet is available as a brand-name drug and a generic drug. Brand name Plaquenil. Hydroxychloroquine comes only as a tablet you take by mouth.